Blaž Gasparini
@blazgaspa.bsky.social
Clouds and climate; Oblakolog;
Cloudy, not blue sky!
Senior scientist @univie.ac.at; previously @UW Atmos Sci, PhD @usyseth.bsky.social
https://blazgasparini.wixsite.com/blaz-gasparini-site
https://klimadynamik.univie.ac.at
Cloudy, not blue sky!
Senior scientist @univie.ac.at; previously @UW Atmos Sci, PhD @usyseth.bsky.social
https://blazgasparini.wixsite.com/blaz-gasparini-site
https://klimadynamik.univie.ac.at
Always nice to have a window seat:
Freezing of a cloud: Wegener-Bergeron-Findeisen process in action in this punch hole cloud example
Something the CloudLab team is recreating artificially cloudlab.ethz.ch
Freezing of a cloud: Wegener-Bergeron-Findeisen process in action in this punch hole cloud example
Something the CloudLab team is recreating artificially cloudlab.ethz.ch
November 7, 2025 at 2:29 PM
Always nice to have a window seat:
Freezing of a cloud: Wegener-Bergeron-Findeisen process in action in this punch hole cloud example
Something the CloudLab team is recreating artificially cloudlab.ethz.ch
Freezing of a cloud: Wegener-Bergeron-Findeisen process in action in this punch hole cloud example
Something the CloudLab team is recreating artificially cloudlab.ethz.ch
Reposted by Blaž Gasparini
Multi-panel view of the last few days of Hurricane Melissa:
↖️ GOES-19 infrared brightness temp
↗️ GOES-19 visible satellite
↙️ Hurricane hunter planes & flight paths
↘️ Recon-derived flight level wind swath
⬇️ Estimated minimum pressure from recon dropsondes
↖️ GOES-19 infrared brightness temp
↗️ GOES-19 visible satellite
↙️ Hurricane hunter planes & flight paths
↘️ Recon-derived flight level wind swath
⬇️ Estimated minimum pressure from recon dropsondes
October 29, 2025 at 10:14 PM
Multi-panel view of the last few days of Hurricane Melissa:
↖️ GOES-19 infrared brightness temp
↗️ GOES-19 visible satellite
↙️ Hurricane hunter planes & flight paths
↘️ Recon-derived flight level wind swath
⬇️ Estimated minimum pressure from recon dropsondes
↖️ GOES-19 infrared brightness temp
↗️ GOES-19 visible satellite
↙️ Hurricane hunter planes & flight paths
↘️ Recon-derived flight level wind swath
⬇️ Estimated minimum pressure from recon dropsondes
at least from Dec on there's again a direct train from Wien to beyond Bratislava...no need to change any more there
🤦
🤦
Die Regiergung von Premier Fico, dem #Orban der Slowakei 🇸🇰, macht #Verbotspolitik, die wie ein Aprilscherz klingt. Nun wurde ein #Tempolimit von 6 Stundenkilometer für Fußgänger beschlossen.
Notiz an mich: Bloß nicht mehr zum Bahnhof von Bratislava eilen, um den Zug nach Wien zu erwischen.
Notiz an mich: Bloß nicht mehr zum Bahnhof von Bratislava eilen, um den Zug nach Wien zu erwischen.
Slowakei beschließt Tempolimit von sechs km/h für Fußgänger
Zu schnelles Gehen auf Zebrastreifen würde Autofahrer irritieren, argumentiert die Regierung. Eigentlich gedacht war die Beschränkung für Skater, Scooter und E-Roller
www.derstandard.at
October 29, 2025 at 7:02 AM
at least from Dec on there's again a direct train from Wien to beyond Bratislava...no need to change any more there
🤦
🤦
Very bright circumzenithal arc from last weekend!
October 23, 2025 at 9:10 PM
Very bright circumzenithal arc from last weekend!
Great read from Mike Wallace (yes, that Wallace from Wallace & Hobbs) on how his view of global warming evolved. From early doubt to real concern.
Longtime climate scientist J. Michael Wallace got his start in meteorology back when pre-internet conspiracy theorists asserted that a nuclear test caused a tornado... Now he reflects on a heap of lessons learned as global warming science has piled up. revkin.substack.com/p/warming-wo... 🧪
October 16, 2025 at 9:40 AM
Great read from Mike Wallace (yes, that Wallace from Wallace & Hobbs) on how his view of global warming evolved. From early doubt to real concern.
I spent a great week visiting the CELLO-Arctic campaign, led by Tim Carlsen and Rob David from the University of Oslo, one of efforts to validate EarthCARE’s products.
I learned a lot about flight planning & really enjoyed the positive vibes and excitement!
More on their website: lnkd.in/dWvANupz
I learned a lot about flight planning & really enjoyed the positive vibes and excitement!
More on their website: lnkd.in/dWvANupz
October 15, 2025 at 4:25 PM
I spent a great week visiting the CELLO-Arctic campaign, led by Tim Carlsen and Rob David from the University of Oslo, one of efforts to validate EarthCARE’s products.
I learned a lot about flight planning & really enjoyed the positive vibes and excitement!
More on their website: lnkd.in/dWvANupz
I learned a lot about flight planning & really enjoyed the positive vibes and excitement!
More on their website: lnkd.in/dWvANupz
Finally, I made it! The aurora was so bright that it was easily visible to the naked eye, not just on camera!
October 11, 2025 at 11:53 PM
Finally, I made it! The aurora was so bright that it was easily visible to the naked eye, not just on camera!
Made it to Kiruna to join the U Oslo's CELLO Arctic EarthCARE validation campaign for a week
www.mn.uio.no/geo/english/...
www.mn.uio.no/geo/english/...
October 6, 2025 at 7:10 AM
Made it to Kiruna to join the U Oslo's CELLO Arctic EarthCARE validation campaign for a week
www.mn.uio.no/geo/english/...
www.mn.uio.no/geo/english/...
Some more memories from my September mountain trip and mountain boundary layer: clouds filling the valley and climbing up toward us
October 2, 2025 at 12:05 PM
Some more memories from my September mountain trip and mountain boundary layer: clouds filling the valley and climbing up toward us
Look at all those anvil top turbulence!
The level of detail revealed by EarthCARE is amazing: as well as the usual change in vertical Doppler velocity as snow melts to rain, we can see the rising air in the eye wall! The imager also captures the 3D nature of the convective cells in the rain bands further out. More analysis to come...
September 30, 2025 at 9:51 PM
Look at all those anvil top turbulence!
Reposted by Blaž Gasparini
Schöne Kollektion an #Föhnfischen heute am Himmel. Der #Föhn machts möglich.
Durch die vom starken Wind ausgelöste Wellenbewegung entstehen diese linsenförmigen Wolken, die scheinbar für mehrere Stunden an Ort und Stelle „stehen“.
#Lenticularis #AcLen #AltocumulusLenticularis
Durch die vom starken Wind ausgelöste Wellenbewegung entstehen diese linsenförmigen Wolken, die scheinbar für mehrere Stunden an Ort und Stelle „stehen“.
#Lenticularis #AcLen #AltocumulusLenticularis
September 21, 2025 at 8:48 AM
Schöne Kollektion an #Föhnfischen heute am Himmel. Der #Föhn machts möglich.
Durch die vom starken Wind ausgelöste Wellenbewegung entstehen diese linsenförmigen Wolken, die scheinbar für mehrere Stunden an Ort und Stelle „stehen“.
#Lenticularis #AcLen #AltocumulusLenticularis
Durch die vom starken Wind ausgelöste Wellenbewegung entstehen diese linsenförmigen Wolken, die scheinbar für mehrere Stunden an Ort und Stelle „stehen“.
#Lenticularis #AcLen #AltocumulusLenticularis
We studied the journey of ice crystals from deep convective cores to thin cirrus (and those formed by ice nucleation too) in a km-scale model
acp.copernicus.org/articles/25/...
@univie.ac.at
acp.copernicus.org/articles/25/...
@univie.ac.at
September 16, 2025 at 9:03 AM
We studied the journey of ice crystals from deep convective cores to thin cirrus (and those formed by ice nucleation too) in a km-scale model
acp.copernicus.org/articles/25/...
@univie.ac.at
acp.copernicus.org/articles/25/...
@univie.ac.at
Great to see this article! We’re also happy to have @claudiablaas.bsky.social supporting us with teaching, running climate model simulations on an HPC system, and guiding us through ASC. Her involvement is certainly an inspiring example for our female students.
„Sei mutig, glaube an dein Potenzial, bleib neugierig“: Das rät Claudia Blaas-Schenner allen jungen Kolleginnen, die eine Karriere im High-Performance Computing (HPC) anstreben.
Zum Interview im Blog von @eurocc-austria.at: eurocc-austria.at/blog/sei-mut...
Zum Interview im Blog von @eurocc-austria.at: eurocc-austria.at/blog/sei-mut...
„Sei mutig, glaube an dein Potenzial, bleib neugierig“
"Supercomputing ist nur etwas für Männer": Der Mythos hält sich hartnäckig. Physikerin und HPC-Pionierin Claudia Blaas-Schenner ist eine jener Frauen, die dieses Märchen ohne viel Getöse auflöst. Waru...
eurocc-austria.at
September 15, 2025 at 10:00 AM
Great to see this article! We’re also happy to have @claudiablaas.bsky.social supporting us with teaching, running climate model simulations on an HPC system, and guiding us through ASC. Her involvement is certainly an inspiring example for our female students.
Last week at the Italy–France border: moist valley air rising and forming near-surface clouds, while a higher cloud layer (with a cloud base of around 3,500 metres) tries to grow by convection, but fails to reach the rain stage. Beautiful!
September 15, 2025 at 6:32 AM
Last week at the Italy–France border: moist valley air rising and forming near-surface clouds, while a higher cloud layer (with a cloud base of around 3,500 metres) tries to grow by convection, but fails to reach the rain stage. Beautiful!
Reposted by Blaž Gasparini
nice article from Nadir Jeevanjee (is he on bluesky?) about predictions climate models got right. successful predictions are the gold standard of science.
5 forecasts early climate models got right – the evidence is all around you
theconversation.com/5-forecasts-...
5 forecasts early climate models got right – the evidence is all around you
theconversation.com/5-forecasts-...
5 forecasts early climate models got right – the evidence is all around you
From rising global temperatures to the fast-warming Arctic, early climate models predicted the changes half a century ago.
theconversation.com
September 4, 2025 at 1:07 AM
nice article from Nadir Jeevanjee (is he on bluesky?) about predictions climate models got right. successful predictions are the gold standard of science.
5 forecasts early climate models got right – the evidence is all around you
theconversation.com/5-forecasts-...
5 forecasts early climate models got right – the evidence is all around you
theconversation.com/5-forecasts-...
tomorrow at 19.00!
Next Wednesday (27.8.) we're having a very diverse and hopefully interesting panel discussion on solar geoengineering within the ICNAA conference, 19.00 at Palais Eschenbach, welcome!
Event:
Do we need to darken the sun? Solar radiation management as a solution to the climate crisis?
Public event of the 22 ICNAA, co-organized by Prof. Paul Winkler.
📆Wednesday, 27 August 2025 19:00
📍Palais Eschenbach, Eschenbachgasse 11, 1010 Vienna
🔗https://physik.univie.ac.at/events/
Do we need to darken the sun? Solar radiation management as a solution to the climate crisis?
Public event of the 22 ICNAA, co-organized by Prof. Paul Winkler.
📆Wednesday, 27 August 2025 19:00
📍Palais Eschenbach, Eschenbachgasse 11, 1010 Vienna
🔗https://physik.univie.ac.at/events/
August 26, 2025 at 8:54 AM
tomorrow at 19.00!
Next Wednesday (27.8.) we're having a very diverse and hopefully interesting panel discussion on solar geoengineering within the ICNAA conference, 19.00 at Palais Eschenbach, welcome!
Event:
Do we need to darken the sun? Solar radiation management as a solution to the climate crisis?
Public event of the 22 ICNAA, co-organized by Prof. Paul Winkler.
📆Wednesday, 27 August 2025 19:00
📍Palais Eschenbach, Eschenbachgasse 11, 1010 Vienna
🔗https://physik.univie.ac.at/events/
Do we need to darken the sun? Solar radiation management as a solution to the climate crisis?
Public event of the 22 ICNAA, co-organized by Prof. Paul Winkler.
📆Wednesday, 27 August 2025 19:00
📍Palais Eschenbach, Eschenbachgasse 11, 1010 Vienna
🔗https://physik.univie.ac.at/events/
Events
Events
physik.univie.ac.at
August 20, 2025 at 3:15 PM
Next Wednesday (27.8.) we're having a very diverse and hopefully interesting panel discussion on solar geoengineering within the ICNAA conference, 19.00 at Palais Eschenbach, welcome!
Paul Winkler and me talked about clouds and aerosols, which ended up in a nice short article put together by Thomas Zauner for the @univie.ac.at Environment and Climate Research Hub.
ech.univie.ac.at/story/cloud-...
ech.univie.ac.at/story/cloud-...
Cloud Power: How the Sky Shapes Our Climate - ECH
Almost every day, we can see clouds in the sky, but rarely we are aware of their wide-ranging impact on the climate. They can both raise and drop temperatures and have complex interactions with the pa...
ech.univie.ac.at
July 29, 2025 at 12:35 PM
Paul Winkler and me talked about clouds and aerosols, which ended up in a nice short article put together by Thomas Zauner for the @univie.ac.at Environment and Climate Research Hub.
ech.univie.ac.at/story/cloud-...
ech.univie.ac.at/story/cloud-...
Reposted by Blaž Gasparini
Am Peršmanhof hat ein SS Polizeiregiment vier Erwachsene & sieben Kinder niedergemetzelt.
80 Jahre später in der Gedenkstätte:
Polizei brüllt mit Hand an der Waffe rum.
Videos: ZiB 1 & Dnevnik (die wesentliche Nachrichtensendung in SLO):
on.orf.at/video/142854...
365.rtvslo.si/arhiv/dnevni...
80 Jahre später in der Gedenkstätte:
Polizei brüllt mit Hand an der Waffe rum.
Videos: ZiB 1 & Dnevnik (die wesentliche Nachrichtensendung in SLO):
on.orf.at/video/142854...
365.rtvslo.si/arhiv/dnevni...
July 29, 2025 at 4:30 AM
Am Peršmanhof hat ein SS Polizeiregiment vier Erwachsene & sieben Kinder niedergemetzelt.
80 Jahre später in der Gedenkstätte:
Polizei brüllt mit Hand an der Waffe rum.
Videos: ZiB 1 & Dnevnik (die wesentliche Nachrichtensendung in SLO):
on.orf.at/video/142854...
365.rtvslo.si/arhiv/dnevni...
80 Jahre später in der Gedenkstätte:
Polizei brüllt mit Hand an der Waffe rum.
Videos: ZiB 1 & Dnevnik (die wesentliche Nachrichtensendung in SLO):
on.orf.at/video/142854...
365.rtvslo.si/arhiv/dnevni...
Reposted by Blaž Gasparini
Vor einigen Wochen durfte ich im Rahmen des Formats Vorlesung für Alle der @uni-hamburg.de einen Vortrag zu Temperaturextremen geben. Die Aufzeichnung ist jetzt auf YouTube 👇 Danke für die Einladung und das Interesse!
youtu.be/0KGi4Y6J2Ls?...
youtu.be/0KGi4Y6J2Ls?...
Vorlesung für alle - Wie ändern sich Wetterextreme mit dem Klimawandel?
YouTube video by Universität Hamburg
youtu.be
July 28, 2025 at 3:57 PM
Vor einigen Wochen durfte ich im Rahmen des Formats Vorlesung für Alle der @uni-hamburg.de einen Vortrag zu Temperaturextremen geben. Die Aufzeichnung ist jetzt auf YouTube 👇 Danke für die Einladung und das Interesse!
youtu.be/0KGi4Y6J2Ls?...
youtu.be/0KGi4Y6J2Ls?...
Reposted by Blaž Gasparini
Hätte da einen Veranstaltungstipp für diverse Kärntner Beamte: #persmanhof
„Hinschaun! Poglejmo. ist die Aufforderung, einen unverstellten Blick auf die NS-Herrschaft in Kärnten zu werfen und sich mit verdrängten Aspekten der eigenen Geschichte zu befassen.“
landesmuseum.ktn.gv.at/ausstellunge...
„Hinschaun! Poglejmo. ist die Aufforderung, einen unverstellten Blick auf die NS-Herrschaft in Kärnten zu werfen und sich mit verdrängten Aspekten der eigenen Geschichte zu befassen.“
landesmuseum.ktn.gv.at/ausstellunge...
July 28, 2025 at 9:32 AM
Hätte da einen Veranstaltungstipp für diverse Kärntner Beamte: #persmanhof
„Hinschaun! Poglejmo. ist die Aufforderung, einen unverstellten Blick auf die NS-Herrschaft in Kärnten zu werfen und sich mit verdrängten Aspekten der eigenen Geschichte zu befassen.“
landesmuseum.ktn.gv.at/ausstellunge...
„Hinschaun! Poglejmo. ist die Aufforderung, einen unverstellten Blick auf die NS-Herrschaft in Kärnten zu werfen und sich mit verdrängten Aspekten der eigenen Geschichte zu befassen.“
landesmuseum.ktn.gv.at/ausstellunge...
Reposted by Blaž Gasparini
Earlier this year I traveled to Australia to report on a unique, localized geoengineering effort: Scientists are investigating whether they can help save the Great Barrier Reef by changing the weather, generating fog and brightening clouds
@nytimes.com Magazine 🎁 www.nytimes.com/2025/07/25/m...
@nytimes.com Magazine 🎁 www.nytimes.com/2025/07/25/m...
The Manmade Clouds That Could Help Save the Great Barrier Reef
www.nytimes.com
July 25, 2025 at 3:51 PM
Earlier this year I traveled to Australia to report on a unique, localized geoengineering effort: Scientists are investigating whether they can help save the Great Barrier Reef by changing the weather, generating fog and brightening clouds
@nytimes.com Magazine 🎁 www.nytimes.com/2025/07/25/m...
@nytimes.com Magazine 🎁 www.nytimes.com/2025/07/25/m...
Nice storm over Vienna now, though with some more rotation at low levels could be even nicer...
July 24, 2025 at 3:47 PM
Nice storm over Vienna now, though with some more rotation at low levels could be even nicer...
lots of shallow convective weather for me recently
July 19, 2025 at 8:11 PM
lots of shallow convective weather for me recently
tropical-like altitudes of 0°C isotherms!
Die Nullgradgrenze steigt am Wochenende zeitweise auf über 5000 m Höhe an. Das ist für die Jahreszeit v.a. im westlichen Alpenraum rekordverdächtig hoch: Etwa bei den täglichen Wetterballon-Messungen in der Schweiz wurde im Juni noch nie eine 0°-Grenze >5000 m verzeichnet (2/3)
June 27, 2025 at 1:10 PM
tropical-like altitudes of 0°C isotherms!